Mojave 10.14.4 fails to Authenticate Gmail account

I too had this problem and tried everything. Finally I I opened Keychain on my Mac and searched for all google logins and deleted everything. Then I went to the mail app and added my gmail account. This time the verification through safari worked and I was back up and running.

Since downloading the 10.14.4 update I have to keep signing into Gmail, Facebook, Netflix, Ebay, Amazon whereas before it used to keep me logged in. Also, I noticed that my frequently visited websites don't appear under Favorites anymore even with "Show Frequently Visited" checked in bookmarks.

TeresaC7,

funny you raise this. The timing seems right for me, too, with Facebook - while I can login and so on, I notice my newsfeed is truncated.

A year or so ago, this was caused by a password app called Dashlane. That is now fixed but it showed me that problems in one thing can be caused by another completely different app. I hope apple finds a fix for this idiocy soon. None of the fixes work for long although I must say my email still rolls in. It's as though gmail is 'paused' rather than completely offline.

Without updating any software, I have just retried to authenticate my email accounts and it worked. Hadn't tried for a few weeks, so something has changed in the interim.

If you haven't tried again recently, it is worthwhile having a go again.

Well, the problem is stil there. Mail.app on OSX, while in verification process, requests to open up accounts.google.com in Safari.

Safari is actual problem - it fails for whatever reason to connect to accounts.google.com.

The exact URL, from Mail.app, opens up perfectly in Chrome. Short URL, eg https://accounts.google.com opens as well in Chrome and in curl.

After 2 long calls with Apple support (very good btw), we tried lots of different ways ranging from emptying cache, running scans, deleting bad software etc. Finally last night I reinstalled Mojave and now emails are working. It probably updated Mail version too so I'm on version 12.4 (3445.104.1). That might have done it, not sure. Keeping my fingers crossed that this solution lasts, the other 2 fixes so far have proven short-lived.

I fixed it. setup as an IMAP. Go to gmail.com and export contacts and calendars and pushed those to my icloud account. Done. Who cares about syncing calendars/contacts in gmail. IMAP works just fine.

I just spoke to Apple support.

They told me to remove all my gmail accounts.

Then, instead of using the gmail button to start again, use "add other account". Then reenter the data in "other mail".

It now works perfectly.

Thank you support.

I tried all the suggestions listed in this thread. Did the keychain solution, recaptcha solution etc. I switched all my 6 G Suite accounts to IMAP.

Nothing really worked until I switched to IMAP... But there is still an authentication problem after switching to IMAP. I no longer get the dialog box telling me Safari needs to authenticate the account. Now, after my iMac has been idle for an hour or more, 3 of my 6 accounts will go offline. Clicking on the little "Login Failed" squiggles will take the accounts back online without having to re-authenticate. Always the same 3.

Interestingly, on my Mac Mini, it's 2 accounts that have this issue after switching the accounts to IMAP. Always the same 2 accounts. On my MacBook Pro, there are 4 accounts, and always the same ones.

BTW, I tried Spark and it has no issues with authentication. But apparently by design, Spark for Mac OS only syncs the most recent 100 messages in any Gmail/Gsuite folder (iOS app syncs everything). If you don't need to sync more than 100 messages in any folder, Spark would be a good alternative to Apple Mail until the issue gets fixed.

I had all those same issues. I went through a series of steps with Apple Support, none of which provided a solution. What finally worked was reinstalling Mojave, I am not sure what version of Mail I was previously but it could be that it updated my Mail app as well.

Jedes. Yes, my Gmail was always IMAP. Early on I thought I'd discovered a 'fix' but, nothing worked for long. However, I've learned over time that the 'lightening' squiggle you mention is merely a 'pause' - it doesn't mean Gmail is offline. You don't really need to click on it to send or receive...My mail just comes in as usual...so I've given up worrying about it.

I would like to reinstall Mojave but not clear on the procedure. Do I just go to the Apple site and download on top of the Mojave that is installed already on my MAC? Are there any repercussions or does it just install? Thanks, hope to hear from you. BTW, is your still working with your fix?

I'm still suffering from this problem, now for a month with no resolution.

I have tried reloading Mojave. It gives me the same version of mail and so the problem continues.

On my two accounts which were both gmail and googlemail I have created a second copy in mail which sort of works. However strange things happen including missing a years worth of sent emails in the history.

The only gmail accounts seemed to get fixed by going through the password routine.

Why can't I download a different version of mail?

Solution that worked for me:

Login to your Gmail account through Safari

Go to account settings

Click on Security tab on left > Third-party apps with account access > click on Manage third-party access

Remove macOS

Go back to Mac Mail and try to connect, it'll ask you to re-authenticate

Account worked after logging in again

Didn't work for me. Each time I remove MAC Mail and follow the authentication process it asks to add MAC OS back in. The only choices are consent or cancel. If I consent I'm back where I started. If I cancel I can only proceed to the point where a pop-up window asks to add MAC OS. Appears to be the now famous loop di loop. Thanks anyway!